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Finding the Fourth Proportional to 636,594,109.40, 955,395,048.90 and 248,602,813.40

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Solution

The fourth proportional to 636,594,109.40, 955,395,048.90 and 248,602,813.40 is: 373,100,997.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,594,109.40 : 955,395,048.90 = 248,602,813.40 : x
  2. Step 2: Convert to fraction form
    636,594,109.40/955,395,048.90 = 248,602,813.40/x
  3. Step 3: Cross multiply
    636,594,109.40x = 955,395,048.90 × 248,602,813.40
  4. Step 4: Simplify right side
    636,594,109.40x = 237,513,897,064,970,560
  5. Step 5: Solve for x
    x = 237,513,897,064,970,560/636,594,109.40
  6. Step 6: Final answer
    x = 373,100,997.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.